Scania EMS DTC 4203 Exhaust gas pressure sensor T125 and charge air pressure sensor T122

EMS Engine Management System · Scania

Code 4203 (decimal). Some diagnostic tools show it in hexadecimal as 106B.

In short

The exhaust pressure sensor indicates a higher value than the charge air pressure sensor.

Applies to: EMS S8

What does Scania EMS fault code 4203 mean?

What causes Scania DTC 4203?

How to fix Scania EMS fault code 4203?

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This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

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